So, since you're keen on titles, let's call this post modern empiricism; the idea that you know your sense are imperfect and that things might exist you cannot sense. Then all your certainties fall away.
Circular Time
- Mark1955
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Re: Circular Time
- h_k_s
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Re: Circular Time
This is rehashed Skepticism. Nothing new under the sun about that.
Descartes forever exorcized Skepticism. It is dead and cold.
- h_k_s
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Re: Circular Time
I would still like to see you formulate a philosophy for science fiction, since science fiction is clearly your favorite subject.
- LuckyR
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Re: Circular Time
A perfectly reasonable personal definition, though not universally accepted. You gave no details, which makes it difficult to comment accurately, but if your idea of time travel resembles popular movies, you are correct, reality is very different from that, though your scenario suffers from being somewhere between never been observed to impossible.
In any case the astronaut situation is identical to skipping time when observed after the fact.
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Re: Circular Time
I think it's more accepted than your definition, which is why many scientists debate whether or not time travel is possible at all.LuckyR wrote: ↑January 2nd, 2019, 2:49 am A perfectly reasonable personal definition, though not universally accepted. You gave no details, which makes it difficult to comment accurately, but if your idea of time travel resembles popular movies, you are correct, reality is very different from that, though your scenario suffers from being somewhere between never been observed to impossible.
In any case the astronaut situation is identical to skipping time when observed after the fact.
Okay I guess we can call the end result time travel, but then couldn't the astronauts also say that everyone back on Earth traveled into the past? From my head's perspective, are my feet traveling into the past right now?
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Re: Circular Time
Science Fiction.What would you call traveling into the future?
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Re: Circular Time
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Re: Circular Time
Yes.are my feet traveling into the past right now?
- Mark1955
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Re: Circular Time
Life?Wayne92587 wrote: ↑January 5th, 2019, 3:51 pmScience Fiction.What would you call traveling into the future?
- Felix
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Re: Circular Time
Axiom #2 is an assumption, there is no reason to believe that causality even applies throughout the known universe, e.g., within a black hole.devans9: Note that all the following alternative solutions are ruled out by axiom 2 (= cause and effect apply)
- An 'uncaused cause' caused the universe
- An infinite regress of time/events caused the universe
- Something from nothing caused the universe
Furthermore, if the universe is eternal, i.e., had no temporal beginning, then by definition it transcends time and the notion of circular time becomes irrelevant.
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Re: Circular Time
Correct Axiom #2 is an assumption, that's why I called it an axiom. But cause and effect is a good axiom. How else does the universe get things done if it is not cause and effect at some level via some mechanisms. I bet we find out that it holds even at quantum level and in black holes.Felix wrote: ↑January 10th, 2019, 12:34 pmAxiom #2 is an assumption, there is no reason to believe that causality even applies throughout the known universe, e.g., within a black hole.devans9: Note that all the following alternative solutions are ruled out by axiom 2 (= cause and effect apply)
- An 'uncaused cause' caused the universe
- An infinite regress of time/events caused the universe
- Something from nothing caused the universe
Furthermore, if the universe is eternal, i.e., had no temporal beginning, then by definition it transcends time and the notion of circular time becomes irrelevant.
An eternal (inside of time) universe is impossible by the axiom of cause and effect. There would be an infinite regress of events into the past:
1. The number of events in an infinite regress is > any number
2. Thats a contradiction (can’t be both a number and > any number)
3. Making up magic numbers is not allowed (can break any theory if magic is admissible)
4. An infinite regress is impossible.
5. An eternal (inside of time) universe is impossible
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Re: Circular Time
The Motion of Time in Space like the motion of Light, due to the nature of motion, the measurable location and momentum of an object in Space-Time, having angular momentum, velocity of speed and direction, the motion of Light and Time are geodesic in nature.
Light travels in a circular motion, even though it never completes the Circle.
- Felix
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Re: Circular Time
First off, no self respecting universe concerns itself with "getting things done." More importantly, in an eternal universe there is room for both serial and nonserial processes - especially if it is infinite - as Wayne alluded to."How else does the universe get things done if it is not cause and effect at some level via some mechanisms."
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Re: Circular Time
- Machapungo
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Re: Circular Time
If the Universe is eternal then it does not require a cause because it is the cause of every thing that happens within it. Motion happens. Time only happens within the minds of those that try to understand motion and is not energy in any form but is an idea that depends on energy as does everything.
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